Barker Manufacturing Company 0149.1131 31558 VIP 3500 24" RV Power Jack 3,500 lbs. lifting capacity Sealed at the bottom of the inner tubeto keep moisture and dirt from the precision screws and nuts Special heavy-duty foot pad prevents sink-in in soft ground or asphalt Waterproof up and down switch and an on/off switch that operates the night light Patented built-in level makes it easy to see when you are raising or lowering your RV